Study Guides
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1.
Heredity and DNA Science Study Guide
Introduction Organisms exhibit characteristics that define them. For example, an elephant has a trunk, an oak tree has green leaves and makes acorns, and humans have large brains. All these characteristics were inherited from parent organisms that looked and acted ...
Source: LearningExpress, LLC -
2.
Heredity and DNA Science Practice Questions
Review these concepts: Heredity and DNA Science Study Guide Practice Questions 1. On paired chromosomes, when two alleles are identical, we say the pair is
Source: LearningExpress, LLC -
3.
Genetics, Cells, and Mendel's Law Help
Genetics Genetics is that branch of biology concerned with heredity and variation. The hereditary units that are transmitted from one generation to the next (i.e., inherited) are called genes. Genes reside in the long molecules of ...
Source: McGraw-Hill Professional -
4.
Chromosomes Help
Chromosome Number and Morphology Chromosome Number In more complex organisms, such as plants and animals, each somatic cell (any cell exclusive of sex cells) contains one set of chromosomes inherited from the ...
Source: McGraw-Hill Professional -
5.
Cell Division and Reproduction Help
Mitosis All somatic cells in a multicellular organism are descendants of one original cell, the fertilized egg, or zygote, through a divisional process called mitosis. During mitosis an exact copy of each chromosome is created and ...
Source: McGraw-Hill Professional -
6.
Gametogenesis Help
Gametogenesis Usually, the immediate end products of meiosis are not fully developed gametes. A period of maturation commonly follows meiosis. In plants, one or more mitotic divisions are required to produce reproductive spores, whereas in animals the meiotic ...
Source: McGraw-Hill Professional -
7.
The Physical Basis of Heredity Practice Problems
Review the following concepts if needed: Genetics, Cells, and Mendel's Law for Genetics
Source: McGraw-Hill Professional -
8.
The Physical Basis of Heredity Practice Test
Review the following concepts if needed: Genetics, Cells, and Mendel's Law for Genetics
Source: McGraw-Hill Professional -
9.
Terminology for Genetics Help
Phenotype A phenotype is any measurable characteristic or distinctive trait possessed by an organism. The trait may be visible to the eye, such as the color of a flower or the texture of hair, or it may require special tests for its ...
Source: McGraw-Hill Professional -
10.
Dominant and Recessive Alleles Help
Dominant and Recessive Alleles Allelic forms of many genes are expressed by coding for the synthesis of a protein, which, in turn, affects the phenotype of the organism. If a distinctive phenotype is associated with an allele (a) only when its alternative ...
Source: McGraw-Hill Professional
